General
- Polyaluminum
chloride (PAC) of the general formula AlnCl(3n-m)(OH)m
is useful as this compound have a wide range of pH value according to
the subscripts n
and m.
The actual pH correlates to the formula
m/(3n). It provides a choice for
the exact pH value
applications. The most common PAC for water purification is Al12Cl12(OH)24.
The form of Al2Cl(OH)5
is used as a deodorant
and an antiperspirant.
- The Polyaluminum
Chloride Solution product line offers a broad range of formulations that
have unique performance characteristics when compared to the more
conventional products like alum, aluminum chloride, ferric chloride,
ferric sulfate, etc. Polyaluminum Chloride Solution is a corrosive
mineral acid. Other modified PAC compounds include polyaluminum
hydroxide chloride silicate (PACS) and polyaluminum hydroxide chloride
silicate sulfate (PASS).
Process
- PAC manufactured
through spray drying process show features of high stability, adaptation
to wide water area, quick hydrolysis speed, strong absorptivity, big
flocs, quick precipitation, low turbidity out of water and superior
dehydration property. Spray drying products can avoid water accident,
and are more safe and reliable for drinking water.
-
Spray granulation is to dry polyaluminium chloride
and atomize to be minute particle simultaneously. Polyaluminium chloride
is water soluble substance and shows features of good thermal stability
and high solubility. Polyaluminium chloride solution with 40-50% solid
content on drying is introduced to high pressure pump, atomized in
atomizer of dryer to be minute fogdrop which is then dried to be
granular products.
Applications &
Technology
- An in-line
coagulation (without sedimentation step)/ultrafiltration process was
investigated. In the process investigated, alum or polyaluminium
chloride used as coagulants proved to be more efficient in the removal
of NOM (natural organic matter) from treated water and in reduction of
membrane fouling, compared to ultrafiltration. Coagulation, as a
pretreatment process, can substantially reduce the concentration of
natural organic substances found in raw water.
- Sand filtration (or
mechanical filtration) will remove most of the solids found in pool
water systems. Clarity
can be improved by the addition of a floccing agent. Common Flocs Used
are PAC (Poly Aluminium Chloride) (Premixed Liquid or Powder),
Alum (Aluminium Sulphate) (Powder or “Rock” forms). The Charged
Particles of the floccing agent are attracted to the suspended
particles. The particles agglomerate and settle out of solution.
- Polyaluminium
chloride (PAC) is increasingly used for water treatment. Against the
conventional use of aluminium sulphate (alum) it is showing distinct
advantages. A polyaluminium chloride plant is an investment opportunity
with attractive returns in a growing market. Polyaluminium chlorides are
synthetic polymers dissolved in water. They react to form insoluble
aluminium poly-hydroxides which precipitate in big volumetric flocs.
Report
- It is reported that
New Age coagulants such as aluminium chlorohydrate (ACH) and
polyaluminium chloride (PACl) do not have as great an effect as does
alum. Organic coagulants generally do not effect the raw water
alkalinity and pH; which can be an advantage in some cases
Entrepreneur who want the
information on "Process, Plant, Technology, Applications, Patent, Consultants, Company Profiles,
Functions, Reports" can E-Mail us to
informer@eth.net,
primaryinfo@gmail.com |
Process, Plant, Technology, Applications, Patent, Consultants, Company Profiles,
Functions, Reports
Primary Information
Services